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58 __________________________________________________________Barco - DCMS - User Manual
Appendix B: Specifcations
13 Appendix B: Specifcations
13.1 Specifications of the USB sensor
• Connection type: USB
• Power supply: through USB.
•Accuracy:
• Maximum deviation from reference sensor (Minolta CA 210) on reference
color and grayscale LCD displays:
3 ∆ Y ≤ 5% from 0.2 to 1000 cd/m
2
(typical)
3 ∆ x ≤ 0.005 from 1 to 1000 cd/m
2
(typical)
3 ∆ y ≤ 0.005 from 1 to 1000 cd/m
2
(typical)
3 ∆ x ≤ 0.01 from 0.2 to 1 cd/m
2
(typical)
3 ∆ y ≤ 0.01 from 0.2 to 1 cd/m
2
(typical)
• Repeatability over 5 measurements:
Y:
3 0.01 cd/m2 in the range of 0.2 to 1 cd/m
2
(typical)
3 0.05 cd/m2 in the range of 1 cd/m
2
to 10 cd/m
2
(typical)
3 0.1 cd/m2 in the range of 10 cd/m
2
to 100 cd/m
2
(typical)
3 1 cd/m2 in the range of 100 cd/m
2
to 1000 cd/m
2
(typical)
x, y :
3 0.005 in the range of 0.2 cd/m
2
to 0.5 cd/m
2
(typical)
3 0.003 in the range of 0.50 cd/m
2
to 1000 cd/m
2
(typical)
13.2 DCMS specifications
For a typical target of 6500 K, gamma 2.35 and luminance 150 cd/m
2
, the user
may expect an accuracy of
for gray levels down to 20% drive level.
These values are not binding as results may vary depending specified targets,
display and display type.
() ()
λ
V=λy